hate to say it, but I agree with lbrown. Unless you already have all the nesscary connections on yours and all you need to do is pick up the FEL, you probably would have done this by now. The only thing I would be concerned is who uses UDT fluid and who uses SUDT. I would hate the thought of anyone mixing UDT in my SUDT system. If you are going to go through all the trouble of gettings lines installed for the FEL if you dont have it yet, Why not get your own FEL? I am sure most of us here will agree that having yor own FEL is the greatest thing to own on your tractor. I am still using mine all the time for everything and I dont worry about when I need it. I use the BX 90% of time in summer for mowing and love the FEL when needed the other 10% of time and it feels like 100% of time LOL!
Swapping tractors between freinds wouldn't be a bad way to go if you can manage.